Method for allocating control resource set, method for acquiring control resource set, base station, user equipment and readable medium

ABSTRACT

Method for allocating CORESET, method for acquiring CORESET, base station, UE and readable mediums are provided. The method for allocating CORESET includes: configuring time position information of a CORESET, the time position information including: the number of symbols occupied by the CORESET, or the number of symbols occupied by the CORESET and a start position of the CORESET, the symbols including symbols in a numerology used by the CORESET; configuring position information of the CORESET in SFN; transmitting the time position information and the position information to the UE, so that the UE selects the start position of the CORESET based on the time position information and the position information, and a preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET. The base station doesn&#39;t need to directly indicate the CORESET, which reduces overhead of signaling indicating CORESET.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority under 35 U.S.C. § 119 to Chinesepatent application No. 201710689594.5, filed on Aug. 11, 2017, and theentire disclosure of which is incorporated herein by reference.

TECHNICAL FIELD

The present disclosure generally relates to communication field, andmore particularly, to a method for allocating a control resource set, amethod for acquiring a control resource set, a base station, a userequipment and a readable medium.

BACKGROUND

In a 5G system, a User Equipment (UE) in an idle state needs to monitora Physical Downlink Control Channel (PDCCH) and blindly detect the PDCCHin a common search space to acquire Downlink Control Information (DCI)therein, so as to receive common control messages, such as RemainingMinimum System Information (RMSI) or paging messages, in a PhysicalDownlink Shared Channel (PDSCH) indicated by the DCI. Time-frequencyresources corresponding to the PDCCH to be monitored by the UE in theidle state are referred to as a Control Resource Set (CORESET).

A base station sends a Master Information Block (MIB) in a PhysicalBroadcast Channel (PBCH) to indicate a first CORESET the UE needs tomonitor in the idle state, so that the UE blindly detects a PDCCH in thefirst CORESET to acquire information such as RMSI when in the idlestate. Further, the RMSI further indicates a second CORESET to bemonitored by the UE in the idle state, so that the UE may blindly detecta PDCCH in the second CORESET in the idle state to acquire pagingmessages or the like. The first CORESET and the second CORESET arecollectively referred to as an idle CORESET.

In specific product implementation, a base station at a network deploysthe idle CORESET based on an application scenario, and sends the idleCORESET to a UE through signaling, so that the UE monitors a PDCCH onthe configured idle CORESET after searching cells. Currently, the idleCORESET is directly indicated by signaling. When the signalingindicating the idle CORESET is large, signaling overhead of the networkis large accordingly.

SUMMARY

By embodiments of the present disclosure, overhead of signalingindicating a CORESET may be reduced.

In an embodiment of the present disclosure, a method for allocatingCORESET is provided, including: configuring time position information ofat least one CORESET, wherein the time position information includes:the number of symbols occupied by the at least one CORESET, or thenumber of symbols occupied by the at least one CORESET and a startposition of the at least one CORESET, wherein the symbols includesymbols in a numerology used by the at least one CORESET; configuringposition information of the at least one CORESET in a System FrameNumber (SFN); and transmitting the time position information and theposition information of the at least one CORESET to a UE, so that the UEselects the start position of the at least one CORESET based on the timeposition information and the position information of the at least oneCORESET, and a preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET.

Optionally, the at least one CORESET includes time-frequency resourcescorresponding to a PDCCH to be monitored by the UE in an idle state.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 15 kHz or 30 kHz and with atime resource pattern corresponding to pattern 2, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thesixth symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot, or the zeroth and the sixth symbols of the first slot; ifthe number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot; if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the sixth and theseventh symbols of the zeroth slot, or the zeroth, the first, the sixthand the seventh symbols of the first slot; and if the number of symbolsoccupied by each of the at least one CORESET is two, and the number ofthe at least one CORESET is one, time positions including: the zerothand the first symbols of the zeroth slot, and the zeroth and the firstsymbols of the first slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 120 kHz or 30 kHz and with atime resource pattern corresponding to pattern 1, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thethird symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot; if the number of symbols occupied by each of the at leastone CORESET is one, and the number of the at least one CORESET is one,time positions including: the zeroth symbol of the zeroth slot, or thezeroth symbol of the first slot; if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the twelfth and thethirteenth symbols of the zeroth slot and the zeroth and the firstsymbols of the first slot; and if the number of symbols occupied by eachof the at least one CORESET is two, and the number of the at least oneCORESET is one, time positions including: the zeroth and the firstsymbols of the zeroth slot, or the zeroth and the first symbols of thefirst slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 240 kHz, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is four, time positions including:the zeroth, the first, the second and the third symbols of a zerothslot, or the zeroth, the second, the fourth and the sixth symbols of thezeroth slot, or the zeroth, the first, the second and the third symbolsof a second slot; if the number of symbols occupied by each of the atleast one CORESET is one, and the number of the at least one CORESET istwo, time positions including: the zeroth and the first symbols of thezeroth slot, and the zeroth and the first symbols of the second slot; ifthe number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second, the third, the fourth, thefifth, the sixth and the seventh symbols of the zeroth slot, or thetenth, the eleventh, the twelfth and the thirteenth symbols of a firstslot and the zeroth, the first, the second and the third symbols of thesecond slot; and if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the second and thethird symbols of the zeroth slot, or the zeroth, the first, the secondand the third symbols of the second slot.

Optionally, the start position indicates a position of a first symbol inthe CORESET, and the number of the at least one CORESET in one, two orfour slots.

Optionally, a time position indicated by the time position informationis a time position of the at least one CORESET in one, two or fourslots.

Optionally, configuring position information of the at least one CORESETin an SFN includes: configuring a period of a CORESET burst set to be Ntimes of a period of a synchronization signal burst set, wherein N is apositive integer, and the CORESET burst set consists of all CORESETswhich complete one round of beam sweeping or consists of all CORESETsspecified within a monitoring period of the UE; and configuring anoffset between a start time of the CORESET burst set and a start time ofthe synchronization signal burst set to be zero.

Optionally, the time position information and the position informationof the at least one CORESET are transmitted to the UE through MIB orRMSI.

In an embodiment of the present disclosure, a method for acquiringCORESET is provided, including: a UE receiving configuration informationfrom a base station, wherein the configuration information includes timeposition information of at least one CORESET, and position informationof the at least one CORESET in an SFN, wherein the time positioninformation includes: the number of symbols occupied by the at least oneCORESET, or the number of symbols occupied by the at least one CORESETand a start position of the at least one CORESET, wherein the symbolsinclude symbols in a numerology used by the at least one CORESET; andselecting the start position of the at least one CORESET based on theconfiguration information, and a preset table of relation between thenumber of symbols occupied by the CORESET and the start position of theCORESET.

Optionally, the at least one CORESET includes time-frequency resourcescorresponding to a PDCCH to be monitored by the UE in an idle state.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 15 kHz or 30 kHz and with atime resource pattern corresponding to pattern 2, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thesixth symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot, or the zeroth and the sixth symbols of the first slot; ifthe number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot; if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the sixth and theseventh symbols of the zeroth slot, or the zeroth, the first, the sixthand the seventh symbols of the first slot; and if the number of symbolsoccupied by each of the at least one CORESET is two, and the number ofthe at least one CORESET is one, time positions including: the zerothand the first symbols of the zeroth slot, and the zeroth and the firstsymbols of the first slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 120 kHz or 30 kHz and with atime resource pattern corresponding to pattern 1, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thethird symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot; if the number of symbols occupied by each of the at leastone CORESET is one, and the number of the at least one CORESET is one,time positions including: the zeroth symbol of the zeroth slot, or thezeroth symbol of the first slot; if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the twelfth and thethirteenth symbols of the zeroth slot and the zeroth and the firstsymbols of the first slot; and if the number of symbols occupied by eachof the at least one CORESET is two, and the number of the at least oneCORESET is one, time positions including: the zeroth and the firstsymbols of the zeroth slot, or the zeroth and the first symbols of thefirst slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 240 kHz, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is four, time positions including:the zeroth, the first, the second and the third symbols of a zerothslot, or the zeroth, the second, the fourth and the sixth symbols of thezeroth slot, or the zeroth, the first, the second and the third symbolsof a second slot; if the number of symbols occupied by each of the atleast one CORESET is one, and the number of the at least one CORESET istwo, time positions including: the zeroth and the first symbols of thezeroth slot, and the zeroth and the first symbols of the second slot; ifthe number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second, the third, the fourth, thefifth, the sixth and the seventh symbols of the zeroth slot, or thetenth, the eleventh, the twelfth and the thirteenth symbols of a firstslot and the zeroth, the first, the second and the third symbols of thesecond slot; and if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the second and thethird symbols of the zeroth slot, or the zeroth, the first, the secondand the third symbols of the second slot.

Optionally, the start position indicates a position of a first symbol inthe CORESET, and the number of the at least one CORESET in one, two orfour slots.

Optionally, a time position indicated by the time position informationis a time position of the at least one CORESET in one, two or fourslots.

Optionally, the position information of the at least one CORESET in theSFN includes: a period of a CORESET burst set being N times of a periodof a synchronization signal burst set, wherein N is a positive integer,and the CORESET burst set consists of all CORESETs which complete oneround of beam sweeping or consists of all CORESETs specified within amonitoring period of the UE; and an offset between a start time of theCORESET burst set and a start time of the synchronization signal burstset being zero.

Optionally, the configuration information is received from the basestation through MIB or RMSI.

Optionally, the method may further include: receiving DemodulationReference Signal (DMRS) on the at least one CORESET to performtime-frequency tracking.

In an embodiment of the present disclosure, a base station is provided,including: a configuring circuitry which includes a first configuringsub-circuitry and a second configuring sub-circuitry, wherein the firstconfiguring sub-circuitry is configured to configure time positioninformation of at least one CORESET, wherein the time positioninformation includes: the number of symbols occupied by the at least oneCORESET, or the number of symbols occupied by the at least one CORESETand a start position of the at least one CORESET, wherein the symbolsinclude symbols in a numerology used by the at least one CORESET;wherein the second configuring sub-circuitry is configured to configureposition information of the at least one CORESET in an SFN; and atransmitting circuitry configured to transmit the time positioninformation and the position information of the at least one CORESET toa UE, so that the UE selects the start position of the at least oneCORESET based on the time position information and the positioninformation of the at least one CORESET, and a preset table of relationbetween the number of symbols occupied by the CORESET and the startposition of the CORESET.

Optionally, the at least one CORESET includes time-frequency resourcescorresponding to a PDCCH to be monitored by the UE in an idle state.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 15 kHz or 30 kHz and with atime resource pattern corresponding to pattern 2, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thesixth symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot, or the zeroth and the sixth symbols of the first slot; ifthe number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot; if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the sixth and theseventh symbols of the zeroth slot, or the zeroth, the first, the sixthand the seventh symbols of the first slot; and if the number of symbolsoccupied by each of the at least one CORESET is two, and the number ofthe at least one CORESET is one, time positions including: the zerothand the first symbols of the zeroth slot, and the zeroth and the firstsymbols of the first slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 120 kHz or 30 kHz and with atime resource pattern corresponding to pattern 1, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thethird symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot; if the number of symbols occupied by each of the at leastone CORESET is one, and the number of the at least one CORESET is one,time positions including: the zeroth symbol of the zeroth slot, or thezeroth symbol of the first slot; if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the twelfth and thethirteenth symbols of the zeroth slot and the zeroth and the firstsymbols of the first slot; and if the number of symbols occupied by eachof the at least one CORESET is two, and the number of the at least oneCORESET is one, time positions including: the zeroth and the firstsymbols of the zeroth slot, or the zeroth and the first symbols of thefirst slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 240 kHz, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is four, time positions including:the zeroth, the first, the second and the third symbols of a zerothslot, or the zeroth, the second, the fourth and the sixth symbols of thezeroth slot, or the zeroth, the first, the second and the third symbolsof a second slot; if the number of symbols occupied by each of the atleast one CORESET is one, and the number of the at least one CORESET istwo, time positions including: the zeroth and the first symbols of thezeroth slot, and the zeroth and the first symbols of the second slot; ifthe number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second, the third, the fourth, thefifth, the sixth and the seventh symbols of the zeroth slot, or thetenth, the eleventh, the twelfth and the thirteenth symbols of a firstslot and the zeroth, the first, the second and the third symbols of thesecond slot; and if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the second and thethird symbols of the zeroth slot, or the zeroth, the first, the secondand the third symbols of the second slot.

Optionally, the start position indicates a position of a first symbol inthe CORESET, and the number of the at least one CORESET in one, two orfour slots.

Optionally, a time position indicated by the time position informationis a time position of the at least one CORESET in one, two or fourslots.

Optionally, the second configuring sub-circuitry is configured to:configure a period of a CORESET burst set to be N times of a period of asynchronization signal burst set, wherein N is a positive integer, andthe CORESET burst set consists of all CORESETs which complete one roundof beam sweeping or consists of all CORESETs specified within amonitoring period of the UE; and configure an offset between a starttime of the CORESET burst set and a start time of the synchronizationsignal burst set to be zero.

Optionally, the transmitting circuitry is configured to transmit thetime position information and the position information of the at leastone CORESET to the UE through MIB or RMSI.

In an embodiment of the present disclosure, a UE is provided, including:a first receiving circuitry, configured to receive configurationinformation from a base station, wherein the configuration informationincludes time position information of at least one CORESET, and positioninformation of the at least one CORESET in an SFN, wherein the timeposition information includes: the number of symbols occupied by the atleast one CORESET, or the number of symbols occupied by the at least oneCORESET and a start position of the at least one CORESET, wherein thesymbols include symbols in a numerology used by the at least oneCORESET; and an acquiring circuitry, configured to select the startposition of the at least one CORESET based on the configurationinformation, and a preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESET.

Optionally, the at least one CORESET includes time-frequency resourcescorresponding to a PDCCH to be monitored by the UE in an idle state.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 15 kHz or 30 kHz and with atime resource pattern corresponding to pattern 2, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thesixth symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot, or the zeroth and the sixth symbols of the first slot; ifthe number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot; if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the sixth and theseventh symbols of the zeroth slot, or the zeroth, the first, the sixthand the seventh symbols of the first slot; and if the number of symbolsoccupied by each of the at least one CORESET is two, and the number ofthe at least one CORESET is one, time positions including: the zerothand the first symbols of the zeroth slot, and the zeroth and the firstsymbols of the first slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 120 kHz or 30 kHz and with atime resource pattern corresponding to pattern 1, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thethird symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot; if the number of symbols occupied by each of the at leastone CORESET is one, and the number of the at least one CORESET is one,time positions including: the zeroth symbol of the zeroth slot, or thezeroth symbol of the first slot; if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the twelfth and thethirteenth symbols of the zeroth slot and the zeroth and the firstsymbols of the first slot; and if the number of symbols occupied by eachof the at least one CORESET is two, and the number of the at least oneCORESET is one, time positions including: the zeroth and the firstsymbols of the zeroth slot, or the zeroth and the first symbols of thefirst slot.

Optionally, the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET includes:to a system with a subcarrier spacing of 240 kHz, if the number ofsymbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is four, time positions including:the zeroth, the first, the second and the third symbols of a zerothslot, or the zeroth, the second, the fourth and the sixth symbols of thezeroth slot, or the zeroth, the first, the second and the third symbolsof a second slot; if the number of symbols occupied by each of the atleast one CORESET is one, and the number of the at least one CORESET istwo, time positions including: the zeroth and the first symbols of thezeroth slot, and the zeroth and the first symbols of the second slot; ifthe number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second, the third, the fourth, thefifth, the sixth and the seventh symbols of the zeroth slot, or thetenth, the eleventh, the twelfth and the thirteenth symbols of a firstslot and the zeroth, the first, the second and the third symbols of thesecond slot; and if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the second and thethird symbols of the zeroth slot, or the zeroth, the first, the secondand the third symbols of the second slot.

Optionally, the start position indicates a position of a first symbol inthe CORESET, and the number of the at least one CORESET in one, two orfour slots.

Optionally, a time position indicated by the time position informationis a time position of the at least one CORESET in one, two or fourslots.

Optionally, the position information of the at least one CORESET in theSFN includes: a period of a CORESET burst set being N times of a periodof a synchronization signal burst set, wherein N is a positive integer,and the CORESET burst set consists of all CORESETs which complete oneround of beam sweeping or consists of all CORESETs specified within amonitoring period of the UE; and an offset between a start time of theCORESET burst set and a start time of the synchronization signal burstset being zero.

Optionally, the first receiving circuitry is configured to receive theconfiguration information from the base station through MIB or RMSI.

Optionally, the UE may further include a second receiving circuitry,configured to receive DMRS on the at least one CORESET to performtime-frequency tracking.

In an embodiment of the present disclosure, a computer readable mediumwhich has computer instructions stored therein is provided, wherein oncethe computer instructions are executed, the method for allocatingCORESET is performed.

In an embodiment of the present disclosure, a computer readable mediumwhich has computer instructions stored therein is provided, wherein oncethe computer instructions are executed, the method for acquiring CORESETis performed.

In an embodiment of the present disclosure, a base station is provided,including a memory and a processor, wherein the memory has computerinstructions stored therein, and once executing the computerinstructions, the processor performs the method for allocating CORESET.

In an embodiment of the present disclosure, a UE is provided, includinga memory and a processor, wherein the memory has computer instructionsstored therein, and once executing the computer instructions, theprocessor performs the method for acquiring CORESET.

Embodiments of the present disclosure may provide following advantages.A table of relation between the number of symbols occupied by theCORESET and the start position of the CORESET is preset. The basestation only needs to configure the time position information of CORESETand the position information of the CORESET in the SFN, without directlyindicating the CORESET, which may effectively reduce overhead ofsignaling indicating a CORESET.

Further, the UE may receive DMRS on the start position of the CORESET toperform time-frequency tracking, which may improve time-frequencytracking performance of the UE.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically illustrates a flow chart of a method for allocatingCORESET according to an embodiment;

FIG. 2 schematically illustrates a flow chart of a method for acquiringCORESET according to an embodiment;

FIG. 3 schematically illustrates a structural diagram of a base stationaccording to an embodiment; and

FIG. 4 schematically illustrates a structural diagram of a UE accordingto an embodiment.

DETAILED DESCRIPTION

In specific product implementation, a base station at a network deploysan idle CORESET based on an application scenario, and sends the idleCORESET to a UE through signaling, so that the UE monitors a PDCCH onthe configured idle CORESET after searching cells. Currently, the idleCORESET is directly indicated by signaling. When the signalingindicating the idle CORESET is large, signaling overhead of the networkis large.

In embodiments of the present disclosure, a table of relation betweenthe number of symbols occupied by the CORESET and the start position ofthe CORESET is preset. The base station only transmits necessaryconfiguration information to the UE based on the table without directlyindicating the CORESET to the UE, which may effectively reduce overheadof signaling indicating a CORESET.

In order to clarify the object, solutions and advantages of embodimentsof the present disclosure, embodiments of present disclosure will bedescribed clearly in detail in conjunction with accompanying drawings.

FIG. 1 schematically illustrates a flow chart of a method for allocatingCORESET according to an embodiment. Referring to FIG. 1, the methodincludes S101, S102 and S103.

In S101, time position information of at least one CORESET isconfigured, wherein the time position information includes: the numberof symbols occupied by the at least one CORESET, or the number ofsymbols occupied by the at least one CORESET and a start position of theat least one CORESET, wherein the symbols include symbols in anumerology used by the at least one CORESET.

In some embodiments, the at least one CORESET includes time-frequencyresources corresponding to a PDCCH to be monitored by the UE in an idlestate. Time-frequency resources include time resources and frequencyresources. In some embodiments, the time resources corresponding to thePDCCH to be monitored by the UE include both PDCCH monitoring occasionand time duration of the PDCCH.

In some embodiments, a time position indicated by the time positioninformation is a time position of the at least one CORESET in one, twoor four slots.

In some embodiments, the symbols include symbols in a numerology used bythe at least one CORESET, but not symbols in a numerology used by asynchronization signal block.

In some embodiments, to effectively reduce overhead of signalingindicating the CORESET, a table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESETmay be preset. The base station only needs to configure the number ofsymbols occupied by the CORESET, and the UE can select the startposition of the CORESET configured by the base station based on thepreset table of relation between the number of symbols occupied by theCORESET and the start position of the CORESET.

In some embodiments, the number of symbols occupied by the CORESET maycorrespond to multiple time positions of the CORESET. In this case, anactual start position of the CORESET is indicated in the start positionof the CORESET.

In some embodiments, the start position indicates a position of a firstsymbol in the CORESET, and the number of the at least one CORESET inone, two or four slots.

The UE is capable of selecting the start position of the CORESET in theone, two or four slots based on the start position, the number ofsymbols occupied by the CORESET, and the preset table of relationbetween the number of symbols occupied by the CORESET and the startposition of the CORESET.

In S102, position information of the at least one CORESET in an SFN isconfigured.

In some embodiments, based on the configured time position information,and the preset table of relation between the number of symbols occupiedby the CORESET and the start position of the CORESET, the UE can acquirethe start position of the CORESET in one, two or four slots, but cannotacquire a position of the CORESET in the SFN. Therefore, the positioninformation of the at least one CORESET in the SFN needs to beconfigured.

In some embodiments, a period of a CORESET burst set is configured to beN times of a period of a synchronization signal burst set, wherein N isa positive integer, and the CORESET burst set consists of all CORESETswhich complete one round of beam sweeping or consists of all CORESETsspecified within a monitoring period of the UE. An offset between astart time of the CORESET burst set and a start time of thesynchronization signal burst set is configured to be zero.

In some embodiments, the CORESET may be associated with asynchronization signal block within one, two or four time slots bydefault, wherein the association relation means that the CORESET and thesynchronization signal block use the same transmitting beam. In theassociation relation, one CORESET may correspond to one synchronizationsignal block, or two synchronization signal blocks. By associating theCORESET with the synchronization signal block, when transmitting to theUE a time position of actually transmitting a synchronization signalblock, the UE can calculate an actual time position of the CORSET.Afterward, the UE may only need to listen to a channel at the actualtime position of the CORESET.

In S103, the time position information and the position information ofthe at least one CORESET are transmitted to the UE, so that the UEselects the start position of the at least one CORESET based on the timeposition information and the position information of the at least oneCORESET, and the preset table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET.

In some embodiments, the time position information and the positioninformation of the at least one CORESET are transmitted to the UEthrough MIB or RMSI. In some embodiments, these configurationinformation may be transmitted to the UE through other information.

In some embodiments, the table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET is preset,so that the UE can select the start position of the at least one CORESETbased on the time position information and the position information ofthe at least one CORESET, and the preset table of relation between thenumber of symbols occupied by the CORESET and the start position of theCORESET.

In some embodiments, the table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET is shownas Table 1.

TABLE 1 the number of symbols the number occupied by of the timeposition time position the CORESET CORESETs of the zeroth slot of thefirst slot 1 2 the zeroth and the the zeroth and the first symbols, orfirst symbols, or the zeroth and the the zeroth and the sixth symbolssixth symbols 1 the zeroth symbol the zeroth symbol 2 2 the zeroth, thethe zeroth, the first, the sixth first, the sixth and the seventh andthe seventh symbols symbols 1 the zeroth and the the zeroth and thefirst symbols first symbols

Referring to Table 1, to a system with a subcarrier spacing of 15 kHz or30 kHz and with a time resource pattern corresponding to pattern 2, therelation between the number of symbols occupied by the CORESET and thestart position of the CORESET may include following cases. The pattern 2includes: one slot (corresponding to fourteen symbols) including twosynchronization signal blocks, where the second to the fifth symbols arethe first synchronization signal block, and the eighth to the eleventhsymbols are the second synchronization signal block.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is two, time positionsinclude: the zeroth and the first symbols of a zeroth slot, or thezeroth and the sixth symbols of the zeroth slot, or the zeroth and thefirst symbols of a first slot, or the zeroth and the sixth symbols ofthe first slot.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is two, time positionsincluding: the zeroth, the first, the sixth and the seventh symbols ofthe zeroth slot, or the zeroth, the first, the sixth and the seventhsymbols of the first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is one, time positionsincluding: the zeroth and the first symbols of the zeroth slot, and thezeroth and the first symbols of the first slot.

In some embodiments, the table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET is shownas Table 2.

TABLE 2 the number of symbols the number occupied by of the timeposition time position the CORESET CORESETs of the zeroth slot of thefirst slot 1 2 the zeroth and the the zeroth and the first symbols, orfirst symbols the zeroth and the third symbols 1 the zeroth symbol thezeroth symbol 2 2 the zeroth, the twelfth and the the first, thirteenthsymbols the second of the zeroth slot, and the and the zeroth thirdsymbols and the first symbols of the first slot 1 the zeroth and the thezeroth and the first symbols first symbols

Referring to Table 2, to a system with a subcarrier spacing of 120 kHzor 30 kHz and with a time resource pattern corresponding to pattern 1,the relation between the number of symbols occupied by the CORESET andthe start position of the CORESET may include following cases. Thepattern 1 includes: two slots (each occupying fourteen symbols)including four synchronization signal blocks, where the fourth to theseventh symbols in the zeroth slot are the first synchronization signalblock, the eighth to the eleventh symbols in the zeroth slot are thesecond synchronization signal block, the second to the fifth symbols inthe first slot are the third synchronization signal block, and the sixthto the ninth symbols in the first slot are the fourth synchronizationsignal block.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is two, time positionsincluding: the zeroth and the first symbols of a zeroth slot, or thezeroth and the third symbols of the zeroth slot, or the zeroth and thefirst symbols of a first slot.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is two, time positionsincluding: the zeroth, the first, the second and the third symbols ofthe zeroth slot, or the twelfth and the thirteenth symbols of the zerothslot and the zeroth and the first symbols of the first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is one, time positionsincluding: the zeroth and the first symbols of the zeroth slot, or thezeroth and the first symbols of the first slot.

In some embodiments, the table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET is shownas Table 3.

TABLE 3 the number of symbols the number time position time positionoccupied by of the of the zeroth/ of the second/ the CORESET CORESETsfirst slot third slot 1 4 the zeroth, the first, the zeroth, the secondand the the first, the third symbols of the second and the zeroth slot,or the third symbols of zeroth, the second, the the second slot fourthand the sixth symbols of the zeroth slot 2 the zeroth and the first thezeroth symbols of the zeroth and the first slot symbols of the secondslot 2 4 the zeroth, the first, the tenth, the second, the third, theeleventh, the fourth, the fifth, the twelfth the sixth and the and thethirteenth seventh symbols of the symbols of the zeroth slot first slot,and the zeroth, the first, the second and the third symbols of thesecond slot 2 the zeroth, the first, the zeroth, the second and the thefirst, the third symbols of the second and the zeroth slot third symbolsof the second slot

Referring to Table 3, to a system with a subcarrier spacing of 240 kHz,four slots (each occupying fourteen symbols) include eightsynchronization signal blocks. The eighth to the eleventh symbols in thezeroth slot are the first synchronization signal block, the twelfth tothe thirteenth symbols in the zeroth slot and the zeroth to the firstslots in the first slot are the second synchronization signal block, thesecond to the fifth symbols in the first slot are the thirdsynchronization signal block, the sixth to the ninth symbols in thefirst slot are the fourth synchronization signal block, the fourth tothe seventh symbols in the second slot are the fifth synchronizationsignal block, the eighth to the eleventh symbols in the second slot arethe sixth synchronization signal block, the twelfth to the thirteenthsymbols in the second slot and the zeroth to the first slots in thethird slot are the seventh synchronization signal block, and the secondto the fifth symbols in the third slot are the eighth synchronizationsignal block. The relation between the number of symbols occupied by theCORESET and the start position of the CORESET may include followingcases.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second and the third symbols of azeroth slot, or the zeroth, the second, the fourth and the sixth symbolsof the zeroth slot, or the zeroth, the first, the second and the thirdsymbols of a second slot.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is two, time positionsincluding: the zeroth and the first symbols of the zeroth slot, and thezeroth and the first symbols of the second slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second, the third, the fourth, thefifth, the sixth and the seventh symbols of the zeroth slot, or thetenth, the eleventh, the twelfth and the thirteenth symbols of a firstslot and the zeroth, the first, the second and the third symbols of thesecond slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is two, time positionsincluding: the zeroth, the first, the second and the third symbols ofthe zeroth slot, or the zeroth, the first, the second and the thirdsymbols of the second slot.

In above embodiments, the table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESET ispreset. The base station only needs to configure the time positioninformation of CORESET and the position information of the CORESET inthe SFN, without directly indicating the CORESET, which may effectivelyreduce overhead of signaling indicating a CORESET.

To make those skilled in the art better understand and implementsolutions of the present disclosure, embodiments of the presentdisclosure also provide a method for acquiring CORESET. Referring toFIG. 2, the method may include S201 and S202.

In S201, a UE receives configuration information from a base station,wherein the configuration information includes time position informationof at least one CORESET, and position information of the at least oneCORESET in an SFN, wherein the time position information includes: thenumber of symbols occupied by the at least one CORESET, or the number ofsymbols occupied by the at least one CORESET and a start position of theat least one CORESET, wherein the symbols include symbols in anumerology used by the at least one CORESET.

In some embodiments, the at least one CORESET includes time-frequencyresources corresponding to a PDCCH to be monitored by the UE in an idlestate. Time-frequency resources include time resources and frequencyresources. In some embodiments, the time resources corresponding to thePDCCH to be monitored by the UE include both PDCCH monitoring occasionand time duration of the PDCCH.

In some embodiments, the symbols include symbols in a numerology used bythe at least one CORESET, but not symbols in a numerology used by asynchronization signal block.

In some embodiments, the configuration information is received throughMIB or RMSI. In some embodiments, the configuration information may bereceived through other information.

In some embodiments, a time position indicated by the time positioninformation is a time position of the at least one CORESET in one, twoor four slots.

In some embodiments, to effectively reduce overhead of signalingindicating a CORESET, the table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESET ispreset. After receiving the number of symbols occupied by the CORESET,the UE acquires the start position of the at least one CORESET based onthe preset table of relation between the number of symbols occupied bythe CORESET and the start position of the CORESET.

In some embodiments, the number of symbols occupied by the CORESET maycorrespond to multiple time positions of the CORESET. In this case, anactual start position of the CORESET is indicated in the start positionof the CORESET.

In some embodiments, the start position indicates a position of a firstsymbol in the CORESET, and the number of the at least one CORESET inone, two or four slots.

The UE is capable of selecting the start position of the CORESET in theone, two or four slots based on the start position, the number ofsymbols occupied by the CORESET, and the preset table of relationbetween the number of symbols occupied by the CORESET and the startposition of the CORESET.

In some embodiments, based on the configured time position information,and the preset table of relation between the number of symbols occupiedby the CORESET and the start position of the CORESET, the UE can acquirethe start position of the CORESET in one, two or four slots, but cannotacquire a position of the CORESET in the SFN. Therefore, the positioninformation of the at least one CORESET in the SFN needs to be acquired.

In some embodiments, a CORESET burst set and a synchronization signalburst set may be configured to be associated with each other by the basestation. A period of the CORESET burst set is configured to be N timesof a period of the synchronization signal burst set, wherein N is apositive integer, and the CORESET burst set consists of all CORESETswhich complete one round of beam sweeping or consists of all CORESETsspecified within a monitoring period of the UE. An offset between astart time of the CORESET burst set and a start time of thesynchronization signal burst set is configured to be zero.

In some embodiments, the CORESET may be associated with asynchronization signal block within one, two or four time slots bydefault, wherein the association relation means that the CORESET and thesynchronization signal block use the same transmitting beam. In theassociation relation, one CORESET may correspond to one synchronizationsignal block, or two synchronization signal blocks. By associating theCORESET with the synchronization signal block, when transmitting to theUE a time position of actually transmitting a synchronization signalblock, the UE can calculate an actual time position of the CORSET.Afterward, the UE may only need to listen to a channel at the actualtime position of the CORESET.

In S202, the start position of the at least one CORESET is selectedbased on the configuration information, and a preset table of relationbetween the number of symbols occupied by the CORESET and the startposition of the CORESET.

In some embodiments, the table of relation between the number of symbolsoccupied by the CORESET and the start position of the CORESET is preset,so that the UE can select the start position of the at least one CORESETbased on the configuration information, and the preset table of relationbetween the number of symbols occupied by the CORESET and the startposition of the CORESET.

In some embodiments, to a system with a subcarrier spacing of 15 kHz or30 kHz and with a time resource pattern corresponding to pattern 2, thepreset table of relation between the number of symbols occupied by theCORESET and the start position of the CORESET may include followingcases.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is two, time positionsinclude: the zeroth and the first symbols of a zeroth slot, or thezeroth and the sixth symbols of the zeroth slot, or the zeroth and thefirst symbols of a first slot, or the zeroth and the sixth symbols ofthe first slot.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is two, time positionsincluding: the zeroth, the first, the sixth and the seventh symbols ofthe zeroth slot, or the zeroth, the first, the sixth and the seventhsymbols of the first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is one, time positionsincluding: the zeroth and the first symbols of the zeroth slot, and thezeroth and the first symbols of the first slot.

In some embodiments, to a system with a subcarrier spacing of 120 kHz or30 kHz and with a time resource pattern corresponding to pattern 1, thepreset table of relation between the number of symbols occupied by theCORESET and the start position of the CORESET may include followingcases.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is two, time positionsincluding: the zeroth and the first symbols of a zeroth slot, or thezeroth and the third symbols of the zeroth slot, or the zeroth and thefirst symbols of a first slot.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is two, time positionsincluding: the zeroth, the first, the second and the third symbols ofthe zeroth slot, or the twelfth and the thirteenth symbols of the zerothslot and the zeroth and the first symbols of the first slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is one, time positionsincluding: the zeroth and the first symbols of the zeroth slot, or thezeroth and the first symbols of the first slot.

In some embodiments, to a system with a subcarrier spacing of 240 kHz,the preset table of relation between the number of symbols occupied bythe CORESET and the start position of the CORESET may include followingcases.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second and the third symbols of azeroth slot, or the zeroth, the second, the fourth and the sixth symbolsof the zeroth slot, or the zeroth, the first, the second and the thirdsymbols of a second slot.

If the number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is two, time positionsincluding: the zeroth and the first symbols of the zeroth slot, and thezeroth and the first symbols of the second slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second, the third, the fourth, thefifth, the sixth and the seventh symbols of the zeroth slot, or thetenth, the eleventh, the twelfth and the thirteenth symbols of a firstslot and the zeroth, the first, the second and the third symbols of thesecond slot.

If the number of symbols occupied by each of the at least one CORESET istwo, and the number of the at least one CORESET is two, time positionsincluding: the zeroth, the first, the second and the third symbols ofthe zeroth slot, or the zeroth, the first, the second and the thirdsymbols of the second slot.

In some embodiments, the UE may further receive DMRS on an actual timeposition of the at least one CORESET to perform time-frequency tracking,which may improve time-frequency tracking performance of the UE.

To make those skilled in the art better understand and implementsolutions of the present disclosure, embodiments of the presentdisclosure provide a base station for performing the above method forallocating CORESET.

Referring to FIG. 3, the base station 30 includes a configuringcircuitry 31 and a transmitting circuitry 32.

The configuring circuitry 31 is configured to configure information ofat least one CORESET, and includes a first configuring sub-circuitry 311and a second configuring sub-circuitry 312. The first configuringsub-circuitry 311 is configured to configure time position informationof the at least one CORESET, wherein the time position informationincludes: the number of symbols occupied by the at least one CORESET, orthe number of symbols occupied by the at least one CORESET and a startposition of the at least one CORESET, wherein the symbols includesymbols in a numerology used by the at least one CORESET. The secondconfiguring sub-circuitry 312 is configured to configure positioninformation of the at least one CORESET in an SFN.

In some embodiments, the at least one CORESET includes time-frequencyresources corresponding to a PDCCH to be monitored by the UE in an idlestate. Time-frequency resources include time resources and frequencyresources. In some embodiments, the time resources corresponding to thePDCCH to be monitored by the UE include both PDCCH monitoring occasionand time duration of the PDCCH.

The transmitting circuitry 32 is configured to transmit theconfiguration information of the at least one CORESET to the UE, so thatthe UE selects the start position of the at least one CORESET based onthe time position information and the position information of the atleast one CORESET, and a preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESET.

In some embodiments, the preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESETincludes: to a system with a subcarrier spacing of 15 kHz or 30 kHz andwith a time resource pattern corresponding to pattern 2, if the numberof symbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thesixth symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot, or the zeroth and the sixth symbols of the first slot; ifthe number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot; if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the sixth and theseventh symbols of the zeroth slot, or the zeroth, the first, the sixthand the seventh symbols of the first slot; and if the number of symbolsoccupied by each of the at least one CORESET is two, and the number ofthe at least one CORESET is one, time positions including: the zerothand the first symbols of the zeroth slot, and the zeroth and the firstsymbols of the first slot.

In some embodiments, the preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESETincludes: to a system with a subcarrier spacing of 120 kHz or 30 kHz andwith a time resource pattern corresponding to pattern 1, if the numberof symbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thethird symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot; if the number of symbols occupied by each of the at leastone CORESET is one, and the number of the at least one CORESET is one,time positions including: the zeroth symbol of the zeroth slot, or thezeroth symbol of the first slot; if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the twelfth and thethirteenth symbols of the zeroth slot and the zeroth and the firstsymbols of the first slot; and if the number of symbols occupied by eachof the at least one CORESET is two, and the number of the at least oneCORESET is one, time positions including: the zeroth and the firstsymbols of the zeroth slot, or the zeroth and the first symbols of thefirst slot.

In some embodiments, the preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESETincludes: to a system with a subcarrier spacing of 240 kHz, if thenumber of symbols occupied by each of the at least one CORESET is one,and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second and the third symbols of azeroth slot, or the zeroth, the second, the fourth and the sixth symbolsof the zeroth slot, or the zeroth, the first, the second and the thirdsymbols of a second slot; if the number of symbols occupied by each ofthe at least one CORESET is one, and the number of the at least oneCORESET is two, time positions including: the zeroth and the firstsymbols of the zeroth slot, and the zeroth and the first symbols of thesecond slot; if the number of symbols occupied by each of the at leastone CORESET is two, and the number of the at least one CORESET is four,time positions including: the zeroth, the first, the second, the third,the fourth, the fifth, the sixth and the seventh symbols of the zerothslot, or the tenth, the eleventh, the twelfth and the thirteenth symbolsof a first slot and the zeroth, the first, the second and the thirdsymbols of the second slot; and if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the zeroth, thefirst, the second and the third symbols of the second slot.

In some embodiments, the start position indicates a position of a firstsymbol in the CORESET, and the number of the at least one CORESET inone, two or four slots.

In some embodiments, a time position indicated by the time positioninformation is a time position of the at least one CORESET in one, twoor four slots.

In some embodiments, the second configuring sub-circuitry 312 isconfigured to: configure a period of a CORESET burst set to be N timesof a period of a synchronization signal burst set, wherein N is apositive integer, and the CORESET burst set consists of all CORESETswhich complete one round of beam sweeping or consists of all CORESETsspecified within a monitoring period of the UE; and configure an offsetbetween a start time of the CORESET burst set and a start time of thesynchronization signal burst set to be zero.

In some embodiments, the transmitting circuitry 32 is configured totransmit the time position information and the position information ofthe at least one CORESET to the UE through MIB or RMSI.

In an embodiment of the present disclosure, a computer readable mediumwhich has computer instructions stored therein is provided, wherein oncethe computer instructions are executed, the above method for allocatingCORESET is performed.

In an embodiment of the present disclosure, a base station is provided,including a memory and a processor, wherein the memory has computerinstructions stored therein, and once executing the computerinstructions, the processor performs the above method for allocatingCORESET.

To make those skilled in the art better understand and implementsolutions of the present disclosure, embodiments of the presentdisclosure provide a UE for performing the above method for acquiringCORESET.

Referring to FIG. 4, the UE 40 includes a first receiving circuitry 41and an acquiring circuitry 42.

The first receiving circuitry 41 is configured to receive configurationinformation from a base station. The configuration information includestime position information of at least one CORESET, and positioninformation of the at least one CORESET in an SFN. The at least oneCORESET includes time-frequency resources corresponding to a PDCCH to bemonitored by the UE in an idle state. The time position informationinclude: the number of symbols occupied by the at least one CORESET, orthe number of symbols occupied by the at least one CORESET and a startposition of the at least one CORESET, wherein the symbols includesymbols in a numerology used by the at least one CORESET.

The acquiring circuitry 42 is configured to select the start position ofthe at least one CORESET based on the configuration information, and apreset table of relation between the number of symbols occupied by theCORESET and the start position of the CORESET.

In some embodiments, the preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESETincludes: to a system with a subcarrier spacing of 15 kHz or 30 kHz andwith a time resource pattern corresponding to pattern 2, if the numberof symbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thesixth symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot, or the zeroth and the sixth symbols of the first slot; ifthe number of symbols occupied by each of the at least one CORESET isone, and the number of the at least one CORESET is one, time positionsincluding: the zeroth symbol of the zeroth slot, or the zeroth symbol ofthe first slot; if the number of symbols occupied by each of the atleast one CORESET is two, and the number of the at least one CORESET istwo, time positions including: the zeroth, the first, the sixth and theseventh symbols of the zeroth slot, or the zeroth, the first, the sixthand the seventh symbols of the first slot; and if the number of symbolsoccupied by each of the at least one CORESET is two, and the number ofthe at least one CORESET is one, time positions including: the zerothand the first symbols of the zeroth slot, and the zeroth and the firstsymbols of the first slot.

In some embodiments, the preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESETincludes: to a system with a subcarrier spacing of 120 kHz or 30 kHz andwith a time resource pattern corresponding to pattern 1, if the numberof symbols occupied by each of the at least one CORESET is one, and thenumber of the at least one CORESET is two, time positions including: thezeroth and the first symbols of a zeroth slot, or the zeroth and thethird symbols of the zeroth slot, or the zeroth and the first symbols ofa first slot; if the number of symbols occupied by each of the at leastone CORESET is one, and the number of the at least one CORESET is one,time positions including: the zeroth symbol of the zeroth slot, or thezeroth symbol of the first slot; if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the twelfth and thethirteenth symbols of the zeroth slot and the zeroth and the firstsymbols of the first slot; and if the number of symbols occupied by eachof the at least one CORESET is two, and the number of the at least oneCORESET is one, time positions including: the zeroth and the firstsymbols of the zeroth slot, or the zeroth and the first symbols of thefirst slot.

In some embodiments, the preset table of relation between the number ofsymbols occupied by the CORESET and the start position of the CORESETincludes: to a system with a subcarrier spacing of 240 kHz, if thenumber of symbols occupied by each of the at least one CORESET is one,and the number of the at least one CORESET is four, time positionsincluding: the zeroth, the first, the second and the third symbols of azeroth slot, or the zeroth, the second, the fourth and the sixth symbolsof the zeroth slot, or the zeroth, the first, the second and the thirdsymbols of a second slot; if the number of symbols occupied by each ofthe at least one CORESET is one, and the number of the at least oneCORESET is two, time positions including: the zeroth and the firstsymbols of the zeroth slot, and the zeroth and the first symbols of thesecond slot; if the number of symbols occupied by each of the at leastone CORESET is two, and the number of the at least one CORESET is four,time positions including: the zeroth, the first, the second, the third,the fourth, the fifth, the sixth and the seventh symbols of the zerothslot, or the tenth, the eleventh, the twelfth and the thirteenth symbolsof a first slot and the zeroth, the first, the second and the thirdsymbols of the second slot; and if the number of symbols occupied byeach of the at least one CORESET is two, and the number of the at leastone CORESET is two, time positions including: the zeroth, the first, thesecond and the third symbols of the zeroth slot, or the zeroth, thefirst, the second and the third symbols of the second slot.

In some embodiments, the start position indicates a position of a firstsymbol in the CORESET, and the number of the at least one CORESET inone, two or four slots.

In some embodiments, a time position indicated by the time positioninformation is a time position of the at least one CORESET in one, twoor four slots.

In some embodiments, the position information of the at least oneCORESET in the SFN includes: a period of a CORESET burst set being Ntimes of a period of a synchronization signal burst set, wherein N is apositive integer, and the CORESET burst set consists of all CORESETswhich complete one round of beam sweeping or consists of all CORESETsspecified within a monitoring period of the UE; and an offset between astart time of the CORESET burst set and a start time of thesynchronization signal burst set being zero.

Optionally, the first receiving circuitry 41 is configured to receivethe configuration information from the base station through MIB or RMSI.

Optionally, the UE may further include a second receiving circuitry 43,configured to receive DMRS on the at least one CORESET to performtime-frequency tracking.

It could be understood that, PDCCH, CORESET, PDSCH, RMSI and MIB aredescribed in the above embodiments as examples. In other embodiments,other channels or signals which can implement similar functions are alsopossible, which falls in scope of the present disclosure.

In an embodiment of the present disclosure, a computer readable mediumwhich has computer instructions stored therein is provided, wherein oncethe computer instructions are executed, the method for acquiring CORESETis performed.

In an embodiment of the present disclosure, a UE is provided, includinga memory and a processor, wherein the memory has computer instructionsstored therein, and once executing the computer instructions, theprocessor performs the method for acquiring CORESET.

Although the present disclosure has been disclosed above with referenceto preferred embodiments thereof, it should be understood that thedisclosure is presented by way of example only, and not limitation.Those skilled in the art can modify and vary the embodiments withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A method for allocating Control Resource Set (CORESET), comprising: configuring time position information of at least one CORESET, wherein the time position information comprises: the number of symbols occupied by the at least one CORESET, or the number of symbols occupied by the at least one CORESET and a start position of the at least one CORESET, wherein the symbols comprises symbols in a numerology used by the at least one CORESET; configuring position information of the at least one CORESET in a system frame number; and transmitting the time position information and the position information of the at least one CORESET to a User Equipment (UE), so that the UE selects the start position of the at least one CORESET based on the time position information and the position information of the at least one CORESET, and a preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET.
 2. The method according to claim 1, wherein the at least one CORESET comprises time-frequency resources corresponding to a PDCCH to be monitored by the UE in an idle state.
 3. The method according to claim 1, wherein the preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET comprises: to a system with a subcarrier spacing of 15 kHz or 30 kHz and with a time resource pattern corresponding to pattern 2, if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is two, time positions comprising: the zeroth and the first symbols of a zeroth slot, or the zeroth and the sixth symbols of the zeroth slot, or the zeroth and the first symbols of a first slot, or the zeroth and the sixth symbols of the first slot; if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is one, time positions comprising: the zeroth symbol of the zeroth slot, or the zeroth symbol of the first slot; if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is two, time positions comprising: the zeroth, the first, the sixth and the seventh symbols of the zeroth slot, or the zeroth, the first, the sixth and the seventh symbols of the first slot; and if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is one, time positions comprising: the zeroth and the first symbols of the zeroth slot, and the zeroth and the first symbols of the first slot.
 4. The method according to claim 1, wherein the preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET comprises: to a system with a subcarrier spacing of 120 kHz or 30 kHz and with a time resource pattern corresponding to pattern 1, if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is two, time positions comprising: the zeroth and the first symbols of a zeroth slot, or the zeroth and the third symbols of the zeroth slot, or the zeroth and the first symbols of a first slot; if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is one, time positions comprising: the zeroth symbol of the zeroth slot, or the zeroth symbol of the first slot; if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is two, time positions comprising: the zeroth, the first, the second and the third symbols of the zeroth slot, or the twelfth and the thirteenth symbols of the zeroth slot and the zeroth and the first symbols of the first slot; and if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is one, time positions comprising: the zeroth and the first symbols of the zeroth slot, or the zeroth and the first symbols of the first slot.
 5. The method according to claim 1, wherein the preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET comprises: to a system with a subcarrier spacing of 240 kHz, if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is four, time positions comprising: the zeroth, the first, the second and the third symbols of a zeroth slot, or the zeroth, the second, the fourth and the sixth symbols of the zeroth slot, or the zeroth, the first, the second and the third symbols of a second slot; if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is two, time positions comprising: the zeroth and the first symbols of the zeroth slot, and the zeroth and the first symbols of the second slot; if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is four, time positions comprising: the zeroth, the first, the second, the third, the fourth, the fifth, the sixth and the seventh symbols of the zeroth slot, or the tenth, the eleventh, the twelfth and the thirteenth symbols of a first slot and the zeroth, the first, the second and the third symbols of the second slot; and if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is two, time positions comprising: the zeroth, the first, the second and the third symbols of the zeroth slot, or the zeroth, the first, the second and the third symbols of the second slot.
 6. The method according to claim 1, wherein the start position indicates a position of a first symbol in the CORESET, and the number of the at least one CORESET in one, two or four slots.
 7. The method according to claim 1, wherein a time position indicated by the time position information is a time position of the at least one CORESET in one, two or four slots.
 8. The method according to claim 1, wherein configuring position information of the at least one CORESET in a system frame number comprises: configuring a period of a CORESET burst set to be N times of a period of a synchronization signal burst set, wherein N is a positive integer, and the CORESET burst set consists of all CORESETs which complete one round of beam sweeping or consists of all CORESETs specified within a monitoring period of the UE; and configuring an offset between a start time of the CORESET burst set and a start time of the synchronization signal burst set to be zero.
 9. The method according to claim 1, wherein the time position information and the position information of the at least one CORESET are transmitted to the UE through Master Information Block (MIB) or Remaining Minimum System Information (RMSI).
 10. A method for acquiring Control Resource Set (CORESET), comprising: a User Equipment (UE) receiving configuration information from a base station, wherein the configuration information comprises time position information of at least one CORESET, and position information of the at least one CORESET in a system frame number, wherein the time position information comprises: the number of symbols occupied by the at least one CORESET, or the number of symbols occupied by the at least one CORESET and a start position of the at least one CORESET, wherein the symbols comprises symbols in a numerology used by the at least one CORESET; and selecting the start position of the at least one CORESET based on the configuration information, and a preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET.
 11. The method according to claim 10, wherein the at least one CORESET comprises time-frequency resources corresponding to a PDCCH to be monitored by the UE in an idle state.
 12. The method according to claim 10, wherein the preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET comprises: to a system with a subcarrier spacing of 15 kHz or 30 kHz and with a time resource pattern corresponding to pattern 2, if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is two, time positions comprising: the zeroth and the first symbols of a zeroth slot, or the zeroth and the sixth symbols of the zeroth slot, or the zeroth and the first symbols of a first slot, or the zeroth and the sixth symbols of the first slot; if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is one, time positions comprising: the zeroth symbol of the zeroth slot, or the zeroth symbol of the first slot; if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is two, time positions comprising: the zeroth, the first, the sixth and the seventh symbols of the zeroth slot, or the zeroth, the first, the sixth and the seventh symbols of the first slot; and if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is one, time positions comprising: the zeroth and the first symbols of the zeroth slot, and the zeroth and the first symbols of the first slot.
 13. The method according to claim 10, wherein the preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET comprises: to a system with a subcarrier spacing of 120 kHz or 30 kHz and with a time resource pattern corresponding to pattern 1, if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is two, time positions comprising: the zeroth and the first symbols of a zeroth slot, or the zeroth and the third symbols of the zeroth slot, or the zeroth and the first symbols of a first slot; if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is one, time positions comprising: the zeroth symbol of the zeroth slot, or the zeroth symbol of the first slot; if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is two, time positions comprising: the zeroth, the first, the second and the third symbols of the zeroth slot, or the twelfth and the thirteenth symbols of the zeroth slot and the zeroth and the first symbols of the first slot; and if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is one, time positions comprising: the zeroth and the first symbols of the zeroth slot, or the zeroth and the first symbols of the first slot.
 14. The method according to claim 10, wherein the preset table of relation between the number of symbols occupied by the CORESET and the start position of the CORESET comprises: to a system with a subcarrier spacing of 240 kHz, if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is four, time positions comprising: the zeroth, the first, the second and the third symbols of a zeroth slot, or the zeroth, the second, the fourth and the sixth symbols of the zeroth slot, or the zeroth, the first, the second and the third symbols of a second slot; if the number of symbols occupied by each of the at least one CORESET is one, and the number of the at least one CORESET is two, time positions comprising: the zeroth and the first symbols of the zeroth slot, and the zeroth and the first symbols of the second slot; if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is four, time positions comprising: the zeroth, the first, the second, the third, the fourth, the fifth, the sixth and the seventh symbols of the zeroth slot, or the tenth, the eleventh, the twelfth and the thirteenth symbols of a first slot and the zeroth, the first, the second and the third symbols of the second slot; and if the number of symbols occupied by each of the at least one CORESET is two, and the number of the at least one CORESET is two, time positions comprising: the zeroth, the first, the second and the third symbols of the zeroth slot, or the zeroth, the first, the second and the third symbols of the second slot.
 15. The method according to claim 10, wherein the start position indicates a position of a first symbol in the CORESET, and the number of the at least one CORESET in one, two or four slots.
 16. The method according to claim 10, wherein a time position indicated by the time position information is a time position of the at least one CORESET in one, two or four slots.
 17. The method according to claim 10, wherein the position information of the at least one CORESET in the system frame number comprises: a period of a CORESET burst set being N times of a period of a synchronization signal burst set, wherein N is a positive integer, and the CORESET burst set consists of all CORESETs which complete one round of beam sweeping or consists of all CORESETs specified within a monitoring period of the UE; and an offset between a start time of the CORESET burst set and a start time of the synchronization signal burst set being zero.
 18. The method according to claim 10, wherein the configuration information is received from the base station through Master Information Block (MIB) or Remaining Minimum System Information (RMSI).
 19. The method according to claim 17, further comprising: receiving Demodulation Reference Signal (DMRS) on the at least one CORESET to perform time-frequency tracking.
 20. A computer readable medium which has computer instructions stored therein, wherein once the computer instructions are executed, the method according to claim 1 is performed.
 21. A computer readable medium which has computer instructions stored therein, wherein once the computer instructions are executed, the method according to claim 10 is performed. 